May Weather in Buffalo, United States

Last updated: June 24, 2025

In Buffalo, United States, the average temperature in May hovers around 15°C (59°F). However, be prepared for a range of temperatures, with lows dipping to 0°C (33°F) and highs soaring to 36°C (98°F). Rainfall can be expected, as this month sees an average precipitation of 106 mm (4.2 in) spread over 11 days, paired with an average humidity level of 78%.

May Temperature in Buffalo

In May in Buffalo, the average temperature is 15°C (59°F). Maximums can reach 36°C (98°F) and minimums can be as low as 0°C (33°F). Be prepared for a wide range of temperatures, making it essential to pack both warm and cool clothing for your travels.

May Weather in Buffalo: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Buffalo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Buffalo, May typically has an average temperature of 15°C (59°F), with highs reaching up to 36°C (98°F) and lows dropping to around 0°C (33°F).

Data source: Temperature data for Buffalo generated using information from the Copernicus Climate Change Service.

May Precipitation in Buffalo

In Buffalo in May, the precipitation amount is 106 mm (4.2 in) spread over a duration of 11 days.

May Precipitation Trends in Buffalo

The chart displays monthly precipitation patterns in Buffalo, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Buffalo, May typically receives around 106 mm (4.2 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

May Humidity in Buffalo

In Buffalo in May, humidity is 78%. With an average temperature of 15°C (59°F), this humidity feels like a warm, enveloping blanket that clings to your skin, making outdoor activities a bit more tiring and requiring frequent breaks for hydration as you explore the area.

May Average Humidity in Buffalo

This chart illustrates the average monthly humidity levels in Buffalo, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Buffalo is approximately 78%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Buffalo

In Buffalo in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Buffalo.

Maximum UV Index Levels in Buffalo for May

The chart shows the monthly maximum UV Index (UVI) for Buffalo in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Buffalo typically reaches 9, which falls under the very high exposure category.

Data source: Buffalo May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How May Weather in Buffalo Compares to Other Months

Weather in Buffalo varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Buffalo, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Buffalo, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-9°C (16°F)	21 mm (0.8 inches)	87%	low
February Weather	-9°C (16°F)	28 mm (1.1 inches)	90%	moderate
March Weather	0°C (32°F)	53 mm (2.1 inches)	85%	moderate
April Weather	6°C (43°F)	88 mm (3.5 inches)	84%	high
May Weather	15°C (59°F)	106 mm (4.2 inches)	78%	very high
June Weather	22°C (72°F)	77 mm (3.0 inches)	80%	very high
July Weather	23°C (74°F)	93 mm (3.6 inches)	81%	very high
August Weather	21°C (71°F)	150 mm (5.9 inches)	81%	very high
September Weather	17°C (64°F)	112 mm (4.4 inches)	81%	high
October Weather	9°C (48°F)	102 mm (4.0 inches)	84%	moderate
November Weather	0°C (33°F)	33 mm (1.3 inches)	88%	moderate
December Weather	-5°C (23°F)	45 mm (1.8 inches)	84%	low